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P. MUELLER & A. C. SCHUERMANN.

LEAD PIPE CONNECTION. APPLICATION FILED DEC.26, I914.

Patented Aug. 15, 1916.

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- PHILIP MUELLER uni) ANTON o. SGHUERMANN, or neonates, inninors.

To all whom it may concern:

Be it known that we, PHILIP MUELLER and vAN roN C. SCHUERMANN, citizens of the United States, residing at Decatur, in the county of Macon and State of: Illinois, have invented new and useful Improvements in Lead-Pipe Connections, of which the following is a'specification.

This invention relates to pipe couplings of the character wherein a relatively soft or malleable member isconnected to a relatively hard or unyieldingmember, and has partlcular reference to "an improved coupling adapted particularly foruse between a corporation cock and a lead pipe.- In couplings or connections of this type, heretofore invented'and used, great difficulty has been encountered in maintaining the connection water tight and preventing its Working loose when the pipe, or the corporation cock, is submitted to torsional strain due to the assembling of adjacent couplings. In these prior structures when aturning force is exerted upon the lead pipe, the pipe is permitted to turn relatively to the cock, and tothus V destroy the sealed connection between the flange of the lead pipe and the endof the corporation cock. It is also found that this turning of the lead pipe not only destroys the seal, but that it in nearly all cases turns the coupling collar or nut with the lead pipe, and in a few turns completely disconnects the coupling. 1 Attempts have been made, as is clearly shown by the prior art, to overcome these difficulties or disadvantages by providing the corporation cock with a threaded extension, or with annular grooves, or the like. These devices assist in holding the lead pipe from longitudinal displacement from the corporation cook, but in no wise do they prevent the relative turning of the lead pipe with respect to the-cock, and in the use of a threaded extension, positively separate the pipe from the cock upon the relative turning of the same. Moreover, a serious objection is found to couplings wherein conical extensions are provided, in that it is necessary tomove the lead pipe longitudinally away from the cock to a considerable distance before the connection can be broken. In the use of corporation cocks, or fittings of this nature, it is essential to Lean-PIPE connnc'rroiv.

- v v m I,\ I h I v Specification of Letters Patent. Patgntgd Aug- 157, 1916 Application filed December 26, 1914. Serial No. 879,125. I

It is the object ofthis invention to overcome all of the above noted objections and disadvantages found in prior couplings in a simple and economical coupling, and in .carrying out this object of the invention the member of the coupling, the flange and thepipe are not only securely held from longitudinal displacement from "the corporation cock, but are also .held from turning with respect to the corporation cock.

provide a coupling occupying. and requiring space.

This inventionmay be embodied in various forms of couplings, and the objects thereof may be accomplished in various structuresof the parts of couplings, but for the purpose of setting forth this invention the following is a detailed description of the present embodiment thereof, the same being illustrated in the accompanying draw-- ings wherein,

Figure 1 is a perspective view partly in section of a corporation cock and a lead pipe assembled by means of one form of the improved connection. Fig. 2 is a detail enlarged view of the end of the corporation' cock showing a modified form of the same. Fig. 3 is a central section taken transversely through the end of the corporation cock as shown in Fig. 2. Fig. 4 is an end view of the corporation cock showing a slight modification of the construction of Fig. 2. Fig. 5 is a longitudinal section through the coupling showing a further modification of the same. Fig. 6 is a face view of the end of the corporation cock of Fig.

Referring to the drawings, wherein like parts are designated by similar characters of reference throughout the several views, and particularly to Fig.- 1, 10 designates a corporation cock of usual construction having the enlarged head or end 11 provided with the usual external screw threads 12.

'The lead pipe'l3 is provided in the usual manner with an'end flange 14 adapted to abut against the outer face of the head 11 of the cock, and is held in such position by the usual coupling nut 15. A sleeve 16 is placed upon the lead pipe 13 with an outturned flange 17 engaging against the outer face of the lead flange 14 to thus providea rigid bearing surface for the coupling nut against the sleeve 16 holding the lead flange against the face of the head 11. It will be noted that the coupling nut '15 has an inturned flange, or'is reduced at'its outer end for engagement against the flange 17 of the sleeve 16 so as" to force the collar and its flange toward the head 11 when the nut is tightened. The present invention resides in making a coupling of this general character such thatthe lead pipe 13 cannot be turned within the coupling nut 15, and against the head 11 of the corporation cock. This result may be accomplished in various 1 ways'but it is shown in Fig. 1 of the drawings as being effected by the provision of a plurality of annularly and radially arranged corrugations 18 formed on the outer face I v the end of the pipe 13 are adapted to be molded or pressed 'duringthe tightening of the coupling. As shown in Figs. 2 and 3 these depressions or recesseslnay-be relatively large and consequently-relatively few in'number, or they may be made relatively small, as shown in-Fig. 4 M118", and be relatively large in number.- In all cases,

however, it is desired that these depressions or recesses be so formed that they present abutments or walls arranged-at an angle to the circumference of the head 11 to thus prevent the turning of the pipe 13' with respect to the corporation cock. From .Fig. 3

' y it will be noted that the depressions or recesses 18 are deeper toward the center of the head 11 and thatthe entire cluster of recesses 183 are surrounded by an annular groove 19 which also is relatively shallow.

The modification shown in .Figs. 5 and 6 discloses the-head 11 provided with a boss 20 surrounding the opening-through the head, the outer surface of the boss being roundedoff and merging into the outer face g of thehead 11 to thus provide for a curved the out-turned flange 141: Ina

receiving surface against which the base of p closely fit. This curved face of the boss 2 is provided with depressions or rec esses 18 which have their inner walls conforming to. ,the curvature of the curved abutting face whereby to receive the body portion of the lead flange 14 and pipe 13 and provide for a possibly more substantial interlockingof the pipe v 13 to the head '11. It will be noted that the collar 16 as employed in this construction,

shown in Fig. 5, is'provided with a head or boss 21 upon its mner end adapted to en: gage in the curved portion of the flange 14 and thus force said curved portion of: the I flange into the recesses or de ressions 18 when the coupling is tightene It will be noted from the dotted lines in Fig. 5 that the walls between the recesses or depressions 18 provide ribs or projections which are embedded in the end of the pipe 13 and its I flange '14 .when the coupling is assembled.

Itisv of course understood that the projections, or corrugations used for interlocking the pipe to the corporation cock may be-of' any suitable form or size provided that they produce raised portions and depressions on the corporation cock, and they may also be arranged at any angle, except in the manner of screw threadsas the latter have been found to only assist in separating the connection upon the accidental turning of either the corporation cook or the lead pipe.

7 In using the improved connection it is' only necessary to assemble the parts in the ordinary manner, as when the sleeve 16 is slipped upon the-end of the lead'pipe 13 and the coupling nut 15 mounted on the collar, the end of the lead pipe is flanged in the usual manner and the same is moved-into coupling nutl5 is now screwed fiup'on the head. This nut draws the'sleeve 16 against the flange 14 ofthe pipe and forces the pipe and its flange against the head vto thus bind the lead pipe against the raised and depressedportions of the head without disturbing the flanged end embedding the extensions or raised ortions of the head in the pipe-13 andlits ange 14, and to mold the registry with the head 11 of the cook. -Thep body of the pipe andflange into the depresv sions. It is thus seen that the pipe cannot be turned relatively to the cock unless sufli cient force is exerted to entirely mutilate the pipe. However, if it is desired to disconnect the coupling all that is necessary to do is-to unscrew the nut 15 to release the" flange 14 and permitit to be moved longitudinally of the .axis -of the coupling through a slight distance, suificient only to disengage the projectionson the headfrom pro] ections and [depressions the then molded of the lead pip'e. The invention presents a relatively-simple structure whichinay be readily and economically made as'a part pf. the usual corporation cocks now used, and which at the same time is extremely effective in accomplishing the desired result of preventing the rela-v tive turning of the pi e' and the corp'orationcock --with no ad itional or different steps in the operation of assembling or-disconnecting the coupling over the method 7 now employed. u i

It is, of course, understood that various. 7 other structuresmay be resorted to than the above set forth within thespirit of this invention, the same beingrestricted only by I.

the scope of the followingclaims. s

What is claimed is}- 1. A coupling as specified comprising a" head, a pipe, a sleeve for the pipeand a coupling nut securing said .sleeve and said; pipe to said head, said headhaving an inter- .rupted fiat surface for contact. withsaid pipe with respect to said head? whereby to prevent the turn g f h s e angle to the circumference of the head, a

3.2111 a coupling asj specified, acorphra tion cock having; a head, aleadv pipe vided with. a" flange-abutting said hea a correspondingly flanged sleeve for the iend of I the 1ead. -p ipe,' .a coupling; nutf e said '1 head engaging ,saidy-fflange {of the sleeve- Whereby to bind the same"- against the .flangeg 1 of the lead pipe and to coinpress the latter against said head,='sa1id head having a flat y-- roughened surface for engagement with said pipe flange to prevent the turning of" the pipe relative to: said-head.

4;. A coupling as specified comprising a.

relatively hard 'member having. a flat roughened abuttingface, a relatively soft ber into the rougheneda'butting face of .the

hard'member whereby not only to hold the members from longitudinal] displacement relative to one another but to also holdthemembers from relative rotary displacement.

5. A coupling as specified, comprising a head provided with a flat face having the're on a series of circularly-arranged radiallydisposedprojections, a lead pipe. provided, with a-flange abutting said face, and a counut to compress theflange of said pipe against said face.

6. Infa coupling as specified, a head provided 'with a'-flatface having a 'series ofaltern-ate projections and depressions :circupipe provided with a flange abutting said flat face, and a coupling'nut to compress the flange of said pipe against said flat face.

' '7IA coupling as specified,-comprising a head having aflat abutting face with alterhate projections. and depressions circularly and radially disposed thereon, said projection xtending beyond the face of said head, a lea .pipe provided with a'fiange abutting said abuttingv face, and a coupling nut to compress the flange of said pipe against. said abuttingface.- I 8; A coupling as specified, comprisin -a depressions circularly and radially disposed -,fth ereon, a leadpipe provided with a flange abutting said head, aflanged sleeve surrounding saidlead'jpipe and abutting said flange to compressfthe same against said head, a, "circular rib on one of said members'to en- -ggagefsaid flange, and a'couplingnut to coin- ;jpresslsaid head,,flange andsleeve together.

91A coupling. as specified, comprising a: head having a flat facewith" alternate pro- ":jections and depressions circularly and raujdially; disposed thereon, a lead pipe pro- ,vided'With a flange abutting'said head, a

.larly and radially disposed thereon, 'a lead j .zhead having a substantially flat abutt ng 7 face provided with alternate projections and flanged sleeveisurrounding said lead pipe I and having a rib thereon to compress said member,' an d a coupllng device binding s'aid members together to. embed said soft mem--v flange against said projections and into said-depressions, and a coupling nut to compress said head, flange and sleeve together.

In testimony whereof we have hereunto set our hands in presence. of two subscribing witnesses. 

